If I take the size that ZEN is reporting for the East pipe,

"On the East anomaly graphite mineralization has been traced for approximately 150 metres in a NE – SW direction by 300 metres in a NW-SE direction. To date, drilling from eleven holes has shown graphite mineralization down to 500 metres vertical where it remains open."

and work out the East Pipe average grade for all holes reported so far within this reported area, I get the following of 4.13%

150x300x500=22,500,000

SG of 2.7= 2.7x22,500,000= 60,750,000 tonnes ore

4.13x60,750,000= 2,508,975 tonnes Graphite

so 27m tonnes ore is being way to conservative IMO

Take Care